CLASSIFICATION (>K AGARICS 277 



267. Psilocybe atrobrunnea I r. 



Epiqrisis, L836 38. 



[llustral ion : Plate LV I of iliis Report. 



PILEUS 1 1 cin. broad, campanulati convex, obtusely umbonate, 

 hygrophanous, umber when moist, Fading to ding} ochraceous, even, 

 glabrous. FLESH thin, concolor. GILLS adnate bul rounded 

 behind, not uncinate, seceding, rather broad, subdistant, brownish 

 gray, then smokj fuscous, edge whitish. STKM .". 15 cm. long, </<<// 

 gated, 1.5 I nun. thick, slender, Qexuous, equal or subattenuate 

 base, even, /<<//< fuscous, covered with whitt silky fibrils, KtufTcd, 

 concolor within, cartilaginous, toughish. SPOKES ellipl 

 in \'l x 5-6 micr., smooth, dark purplish brown. < >l >< >k and TASTK 

 Blight, Bomewhat farinaceous. 



In tamarack i>o^s, among sphagnum. September-November. 

 Ann Arbor. Local. 



Known by iis sphagnum habitat, dark color when moist and its 

 long sicins. The superficial white fibrils on the stein seem to in- 

 dicate a veil. 



268. Psilocybe uda (IY. Battaille 



Syst. Myc, 1821, Bull. de la. Soc. Myc. .1-' France, Vol. 27, p. 374, 



1911. 



PILEUS 1-2 cm. broad, campanulate, mammilate, with a viscid 

 pellicle, striatulate <nnl grayish olive with rufous-brown umbo when 

 moist, shining, fading to creamj white with pale-yellow umbo, 

 glabrous. FLESfl thin. GILLS adnate or sliehtlv subdecnrrent, 

 very broad, close to subdistant, gray then violaceous-blackish, edge 

 white-flocculose. STEM 7-10 cm. long, slender, 1.5-2 mm. thick, 

 slightly thicker toward base, equal elsewhere, pallid-whitish, rigid, 

 glabrous, even, hollow, sometimes annulate by iln- delicate, superior, 



- 



fibrillose remains of the veil. SP< >RES elliptical, 17 -" \ 10 micr., 

 smooth, bright violet-purple under the microscope, purplish-bin 

 ish in nui^s. STERILE CELLS on edge ot gills, narrow, lint 

 <>|m>K none. 

 on horse-dung, in low woods. New Richmond. Septeml 

 This species is slender-stemmed like Stropharia m"' 

 ami its spores are about the Bame Bize. It differs from x 

 bonatescens in the olive-colored, striate pileus, and lack 



